#older dog

Omega-3 supplements and hypothyroidism linked to decline of T-zone lymphoma

Omega-3 supplements and hypothyroidism linked to decline of T-zone lymphoma

April 4, 2019

A study at Colorado State University (CSU) has found dogs who receive omega-3 fatty acid supplements or have hypothyroidism may be less likely to develop T-zone lymphoma (TZL). The findings come from Morris Animal Foundation-funded researchers who looked at associations of the environment and health history of TZL among golden retrievers. T-zone lymphoma is a type of cancer, which progresses slowly and is usually found in older dogs. It is predominantly found in golden retrievers; however, Anne Avery, DVM, PhD, associate professor in the department of microbiology, immunology, and pathology at CSU, believes the underlying causes of the tumor are shared across breeds. "Although controlled prospective studies would be necessary to firmly establish protection by omega-3 fatty acids, our observations raise the possibility of a simple intervention, which may help reduce the frequency of this disease," Dr. Avery says. "We were also a little surprised to discover defective genes leading to another, seemingly unrelated disorder— hypothyroidism—are more common in dogs who do not develop T-zone lymphoma." More than 350 golden retrievers were used in the study, which looked at health history questionnaires and blood or biological samples. The dogs were divided into two groups. One of the groups …
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